3 years ago

Find the area of the shaded region in the figure below

Mathematics

1 answer:

kicyunya [14]3 years ago

5 0

Answer:

Area of 9 cm circle = PI*radius^2 = 254.47

Area of 9 cm sircle = PI*4*4 = 50.27

Are of shaded region = 254.47 -50.27 = 204 sq cm

Answer is the bottom one on the list.

Step-by-step explanation:

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A population, P(t) (in millions) in year t, increases exponentially. Suppose P(9)=16 and P(18)=24. a) Find a formula for the pop

jenyasd209 [6]

Answer: $\frac{32}{3}\left ( 1.0460\right )^t$

Step-by-step explanation:

Given

Population changes exponentially

$P\left ( t\right )=ab^t$

$P\left ( 9\right )=16$ ------1

$P\left ( 9\right )=16=ab^8$

$P\left ( 18\right =24=ab^{18}$ -----2

divide 1 & 2 we get

$\frac{24}{16}=\frac{b^{18}}{b^9}$

$\frac{3}{2}=b^9$

Substitute $b^9$ in 1 we get

$a=\frac{32}{3}$

Thus $P\left ( t\right )=\frac{32}{3}\left ( 1.0460\right )^t$

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3 years ago

Read 2 more answers

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Alenkasestr [34]

What’s the question?

6 0

3 years ago

Can someone please help me with this geometry please?

Crank

Answer:

<u>5x+13</u> ÷ 36 = 6x-2 ÷ 30

5x+13 ÷ 6 = 6x-2 ÷ 5

25x+65=36x-12

11x=77 → x=7

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Step-by-step explanation:

5 0

3 years ago

A square has a diagonal of length 12. Find the length of each side.

White raven [17]

Answer:

Step-by-step explanation:

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Hope this will help you!

7 0

2 years ago

Jay sells 10 packs of apples for 80p. He wants to make £75 at the end of the year. How many packs of apples does he need to sell

ipn [44]

Answer:

937.5 packs of apples

Step-by-step explanation:

Note that:

100p = £1

80p = x

Cross Multiply

100x = 80p × £1

x = 80/100

x = £0.8

Jay sells 10 packs of apples for 80p.

Hence:

£0.8 = 10 packs of apples

£75 = x

Cross Multiply

£0.8 × x = £75 × 10 Packs

x = £75 × 10 Packs/£0.8

x = 937.5

Therefore, to make £75 at the end of the year, he has to sell 937.5 packs of apples

3 0

2 years ago